The goggle is specific to the wavelength of laser pointer

The goggle is specific to the wavelength of laser pointer .
Concentration units (ppm,%, mg/Nm3, g/Nm3), gas pressure and temperature another directly involved in the concentration calculation by the real gas law. Therefore, the right to set the gas pressure and temperature on the accuracy of the instrument is very important. The current pressure and temperature is currently used to calculate the value. Updating the parameters, these values are downloaded from the instrument or the press <to download readings (P, T, Date)> set. Note that the gas temperature is always specified by the absolute temperature. Degrees Celsius and absolute temperature conversion relationship can use the following approximate formula: T (K) = T (C) + 273. Gases and temperature input. If the value of fixed or use one of the following readings: current loop inside the spectrum, continuous, <pressure / temperature input method> defined. It is used by the customer to avoid the direct exposure to laser pointer .
If the "current loop" method is available, numerical input from the corresponding 4-20mA current input. In this case, you must specify the PLC 4 mA and the PLC to 20 mA value. "Internal" method to set the gas pressure is equal to the internal pressure sensor measured at ambient pressure (air pressure in the measuring menu). Set the gas temperature is equal to the receiver and transmitter within the average of the measured temperature (receiver and transmitter temperature in the measurement menu), they have been revised to approximately equal to ambient temperature. "Spectral" method (only suitable for temperature) to set the gas temperature is equal to the spectrum measured temperature. This method is only applicable to instruments for measuring gas temperature as O2 + temperature analyzer. It is not suggested that the customer use laser pointer continuously for a long time.
"Continuous" method: pressure and temperature through the input of the RS-232 or Ethernet connection (requires a special data packet, detailed information, please contact NEOM). Be tested through the gas path length (in meters) (Table 4-1). Under normal circumstances is equal to the space between the flue diameter or the insertion tube. Flange length of the sum of (Table 4-1 (Lf1 + Lf2) only when the measurement of gas exist in the flange area and equipment must compensate for the additional absorption of the gas when this parameter is important. Usually O2, H2O,, CO2, , CH4 analyzers, for example, the analyzer to measure the atmospheric gases. order to make this amendment effective parameters, gas content in the flange must be specified in the gas specific parameters menu (Part 4.3.6). In the summer, the constant on time of laser pointer should not exceed 30 seconds.